Bench-dog.



PATENTED JUNE 16, 1908.

G. H. KROGH.

BENCH DOG.

APPLICATION FILED JULY 16. 1907.

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INVENTOH IBHHISTEIPHEH H. Kan 51-1 A ,TTOHNE rs CHRISTOPHER HANSENKROGH, OF LINCOLN, NEBRASKA.

BENCH-DOG.

Specification of Letters Patent.

Patented June 16, 1908.

Application filed July 15, 1907. Serial No. 383,785.

To all whom it may concern:

Be it known that I, CHRISTOPHER HANsEN KROGI-I, a citizen of Denmark,having made his application and declaration to become a citizen of theUnited States,.and a resident of Lincoln, in the county of Lancaster andState of Nebraska, have invented certain new and useful Improvements inBench-Dogs, of which the following is a specification.

My invention is an improvement in bench dogs for use on work benches inholding the Work while it is being planed or otherwise operated on; andthe invention consists in certain novel constructions and combinationsof parts as will be hereinafter described and claimed.

In the drawings, Figure 1 is a top plan view of my invention as in use,the bench being partly broken away. Fig. 2 is a longi tudinal sectiondrawn alongside the bench dogs and illustrating one of the dogs inengagement with the work and the other dog in position to be forced intosuch engagement. Fig. 3 is a detail perspective view of the improveddevice. Fig. 4 is a detail view of the lever, and Fig. 5 illustrates amodification in the means for providing the groove or way for the benchdog.

In carrying out the invention, Iprovide in connection with the dogproper, the carrier therefor, and a device for operating the dog, whichdevice also operates to bind the carrier in any suitable position towhich it may be adjusted; and in the construction shown I make the dogcarrier in two side sections which may be spread apart to bind them in aroove provided in the bench and the device for operating the dog is inthe form of a lever pivoted between the side pieces of the carrier andconstructed when operated to move the dog into engagement with the workto spread the carrier in such manner as to bind it in the grooveprovided therefor in the bench.

The bench A is provided with a groove in which the dog carrier may beheld and along which it may be adjusted to any suitable po sition. InFigs. 1 and 2, this groove B is secured by channeling the upper surfaceof the bench, while in Fig. 5, I secure the way or groove by securingseparate strips C upon the upper face of the bench and spaced apart aproper distance to receive the carrier of the dog between them.

The dog D is toothed at D to enga e with.

the work to be operated on, and is s idably connected with the carrier Eso the dog may the right and left in Fig. 2.

be adjusted between the positions shown at The carrier E is preferablycomposed of the side bars F sccured together at one end and spaced apartat their other ends. These bars F are slotted longitudinally at G neartheir connected ends and the dog D is provided with a depending lug Hwhich fits between the side bars F and is provided with lateralprojections or lugs I operating in the slots G so the dog may be movedin the direction of length of the carrier by the operating devicepresently described.

The carrier fits in the groove of the bench and an operating device isprovided for moving the dog lon itudinally and for spreading the carrierto 0 amp it in any desired position within the groove. As shown, the dogoperating device is provided by a lever J pivoted at K to the carrierimmediately in rear'of the dog and having its short arm L arranged tooperate against the rear end of the dog bearing directly upon the lug Hand the lever gradually widens from that ortion which fits between theside bars oftie carrier when the lever is raised so that when the leveris pressed from the elevated position shown in Fig. 2 to the loweredposition shown in the same figure, the inclined surfaces at M willoperate to spread the side bars of the carrier and thus bind the carrierin position in connection with the bench. Thus, by one operation oflowering the lever it serves to ress the dog into engagement with theworli desired to be held and also to bind the carrier of said dog inplace in the groove rovided therefor in the bench.

It wi 1 be understood that in practice the groove in the bench isdesigned to be inade of sufficient depthto receive the carrier so thatonly the dog will project above the face of the bench when the operatingdevice is lowered to set the dog into engagement with the work, as willbe understood from the drawings and foregoing description.

I claim 1. A bench dog substantially as herein described, comprising acarrier having the op osite side bars connected together at one enc andarranged to be spread at theirouter ends, a dog having a lug slidingbetween said bars at the connected end thereof and a lever pivotedbetween the opposite bars of the carrier and arranged at one end tovengage and operate the dog and gradually widening from its pivotalconnection with the carrier whereby it may spread the carrier bars whenactuated to position between the said bars, substantially as set forth.

2. A bench dog comprising a carrier having opposite side bars, a dogslidable relatively to said carrier, and a lever pivoted to the carrierand arranged to operate the dog and to spread the carrier substantiallyas and for the purposes set forth.

3. A bench dog com rising a carrier, a dog slidable relatively tot ecarrier and a lever pivoted to the carrier and arranged to operate thedog and having a portion engaging with the carrier whereby to bind thesame in place, substantially as set forth.

4. The combination of a bench, a dog, a carrier adjustable along thebench, a dog operating device having means for spreading the carrierwhereby to secure the same in any desired position.

5. The combination with a bench having a groove a carrier adapted to bespread in such groove and a dog slidable relatively to the carrier, of alever mounted in the carrier and having means whereby to operate the dogand having an inclined surface whereby to spread the. carrier,substantially as set forth.

6. The combination of a carrier having side bars provided withlongitudinal slots, a dog having a depending lug fitting between saidside bars and provided with projections entering the slots in the sidebars of the carrier, and a lever pivoted between the side bars of thecarrier and having an arm to operate the dog and a handle arm inclinedto operate upon and spread the carrier, substantially as set forth.

CHRISTOPHER HANSEN KROGH. Witnesses:

FRED BEOKMANN, F. B. SIDLEs.

